the tweet quickly went viral and was reported to the fbi and cia. a man in north carolina is now facing charges after he tweeted he was going to take the life of the president. >>> well, as the anniversary of 9/11 approaches, most americans say they feel safer now compared to four years ago when president obama first took office. most of those polled say they no longer worry every day about another terror attack and that the additional security at airports has become a regular part of traveling. people also say they feel many terror networks have been impacted, especially with the death of osama bin laden. >>> a display in west sacramento is honoring one of the worst terror attacks in u.s. history. at the corner of south river boulevard and jefferson are thousands of u.s. flags, one for each life lost on september 11th. john vinh sent put the display together and says the day impacted everyone across the country. >> i just think it's really important that people remember what happened that day and, you know, to realize that freedom isn't free. >> he